Thank you to those who replied on the origin of DAEFELE or DEFELE. Both
Ralph Baer and Lars Menk connected it to a dimunitive of the David,
with Lars giving me my own family's adoption of this surname in
Kochendorf as the source of his information on this surname. It does
still appear to be an unusual name. Thanks!
Alice Josephs London UK <firstname.lastname@example.org>